Great tit response to decreasing industrial heavy metal emissions.

Autor: Costa RA; Departamento de Biologia & CESAM, Universidade de Aveiro, Campus de Santiago, Aveiro, 3810-193, Portugal. rute.costa@ua.pt., Gomes T; Departamento de Biologia/CBMA, Universidade do Minho, Campus de Gualtar, Braga, 4710-057, Portugal., Eira C; Departamento de Biologia & CESAM, Universidade de Aveiro, Campus de Santiago, Aveiro, 3810-193, Portugal.; Sociedade Portuguesa de Vida Selvagem, Estação de Campo de Quiaios, Apartado 16 EC Quiaios, Figueira da Foz, 3081-101, Portugal., Vaqueiro J; Departamento de Biologia/CBMA, Universidade do Minho, Campus de Gualtar, Braga, 4710-057, Portugal.; Sociedade Portuguesa de Vida Selvagem, Estação de Campo de Quiaios, Apartado 16 EC Quiaios, Figueira da Foz, 3081-101, Portugal., Vingada JV; Departamento de Biologia/CBMA, Universidade do Minho, Campus de Gualtar, Braga, 4710-057, Portugal.; Sociedade Portuguesa de Vida Selvagem, Estação de Campo de Quiaios, Apartado 16 EC Quiaios, Figueira da Foz, 3081-101, Portugal.; CESAM, Universidade de Aveiro, Campus de Santiago, Aveiro, 3810-193, Portugal.
Jazyk: angličtina
Zdroj: Ecotoxicology (London, England) [Ecotoxicology] 2017 Aug; Vol. 26 (6), pp. 802-808. Date of Electronic Publication: 2017 May 15.
DOI: 10.1007/s10646-017-1811-6
Abstrakt: This study evaluated the effects of environmental pollution on decreasing great tit (Parus major) breeding parameters in an industrial area in the west coast of Portugal. Several great tit breeding parameters were monitored in the industrial area, as well as in a rural area not affected by industrial emissions. Low levels of air pollution in both industrial and rural areas were confirmed by assessing trace element concentrations in pine needles. Concentrations of Cd and Hg in pine needles from the industrial area (Cd = 0.05 ppm; Hg = 0.005 ppm) were significantly lower than those found in needles collected from the reference area (Cd = 0.07 ppm; Hg = 0.007 ppm). Additionally, the breeding success of great tits increased in the industrial area in comparison to the reference area (0.93 ± 0.08 and 0.62 ± 0.22, respectively). The changes on great tit breeding parameters were probably related with changes in the breeding density of other competitive species, together with a decreasing frass-fall biomass. Further long-term ecological studies in industrial areas are necessary to understand the changing breeding performance and strategies used by great tits in response to pollution shifts in the environment.
Databáze: MEDLINE
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